【简答题】This happened in London It was November and the weather was very wet and cold. A Frenchman had caught a very bad cold. He coughed day and night, so he decided to go and get some medicine for his cough...
【单选题】I was born ______a cold evening in November.
【判断题】大部分的财产物资清查一般采用实地盘点法。 ( )
【简答题】已知电路如图所示,U S =6V,R 1 =3kΩ,R 2 =2kΩ,C=5μF,换路前,电路已处于稳态。t=0时,S开关闭合,试求u C 、i C 。
【简答题】In November a cold unseen stranger, ________________(被医生叫做肺炎), walks about the colony, touching one here and there with his icy fingers.
【单选题】It ________ be really cold in November in Hefei though we usually have warm and sunny days. [ ]
【单选题】It is_____cold in November.
【简答题】已知电路如图a所示,R=1.5kΩ,L=15H,U S =18V,换路前,电路已处于稳态。t=0时,S开关闭合,试求i L 、u L ,并画出其波形。